Google announced the latest Panda 4.1 on 27 September 2014. Google Panda is a filter designed to penalize “Thin” or low quality (poor) content from Google SERP ranking.
Google said in a post on Google+ that it’s a slow roll out began last week and will continue into this week as well. This Google Panda 4.1 will more focus on high quality small and medium sized sites to rank better in Google SERP.
This update affected 3%-5% depending on location. This update comes 4 month after previous Google panda update.
Google Panda 4.1 biggest winners are news, content and download portal & biggest losers are games, lyrics and few medical content.